Ubuntu Linux is a Debian derivative that aims to bring Linux mainstream. Questions on this site should generally refer to Ubuntu Server. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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LVM Free Disk Space

I have a MongoDB running on a virtual server (Ubuntu 14.04.2 LTS). The MongoDB logs say this: Fri May 8 13:08:02.270 [initandlisten] ERROR: Insufficient free space for journal files Fri May 8 ...
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21 views

Disabling HyperV integration services on Ubuntu 12.04

I'd enabled the integration services for hyper-v on Ubuntu 12.04 but started to see big problems especially with the block storage module (hv_blkvsc) I'd enabled it by adding the modules to ...
0
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1answer
98 views

CentOS vs Ubuntu Wordpress server security

I am building out a new Wordpress server for a web developer redesigning my companies website. I originally decided to go with CentOS due to stability. However it appears based on the versions of ...
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0answers
78 views

Windows Phone 8.1 client unable to connect to Ubuntu VPN server (L2TP with IPsec)

I have set up an L2TP + IPsec VPN server on my Ubuntu server (14.04.2 64bit) using openswan. I got it working with Android and Windows 8.1 clients, though Windows 8.1 required some tweaking. When ...
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0answers
51 views

ruby on rails 404 not found after deployment

I'm getting a 404 not found error after deploying my rails app. I'm using: ubuntu, nginx, capistrano, & unicorn. These are my configurations: nginx.conf upstream unicorn { server ...
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0answers
18 views

Server apparently being exploited to send emails [duplicate]

I have a dedicated server which runs a forum, a couple of wordpress installations and a prestashop ecommerce platform. My datacentre keeps cutting my connection, stating that my server is sending out ...
2
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0answers
54 views

Virtualization limits for Ubuntu Server 14.04 LTS with KVM?

Essentially I'm after something like this: Virtualization limits for Red Hat Enterprise Linux with KVM but for Ubuntu Server 14.04 LTS. I'm trying to create some KVM guests with very large 1TB+ RAM ...
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2answers
63 views

Port 22 is accepting connections, but not visible in netstat, unhide etc

So I have this weird issue where one of my boxes is accepting connection on the ssh port (22) even after sshd is stopped. I tried to identify the listening process by the typical means sudo netstat ...
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2answers
34 views

iptables unable to open 80 && 8000 port on my ubuntu server

I am unable to open 8080 port on my server though iptables settings seem correct Here is the result of iptables-save iptables-save # Generated by iptables-save v1.4.21 on Thu May 7 21:31:19 2015 ...
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1answer
26 views

mhddfs Gives Permission denied Error When Writing File to It's Mounted Volume

Running mhddfs 0.1.38 on Ubuntu-12.04 and have two NFS volumes exported from two different servers and mounted to this box. I can successfully create the mhddfs volume, I can read and list from it, ...
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1answer
94 views

“Unable to stat /usr/lib/jvm/java-7-oracle/bin/java” when trying to run Tomcat7 with Java8

I'm trying to upgrade my servers to Java8 from Java7 so that they will run my webapps under Java8. On one of my machines I'm getting the following error and I'm not sure what is still referring to ...
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0answers
38 views

CUPS ignoring lp -o options when printing to Ricoh 4000 with Fiery E-5100

I'm having difficulties controlling which paper type, size and tray when printing from the command line using either lp or lpr. The commands appear to just ignore the -o options altogether and print ...
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1answer
38 views

Steps for upgrading ubuntu production cloud server

I have a site running on a cloud server with Ubuntu 13.04. I want to upgrade to 14.04 as seamlessly as possible. I found this answer but I wanted to flesh it out so I can be more confident. My plan ...
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2answers
45 views

OSSEC disk space usage

A few days ago I noticed that the disk of my Ubuntu server was almost full. I dug a bit and found out that the disk space was used by OSSEC, in the /var/ossec/queue/diff folder. I wanted to try ...
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0answers
7 views

VMWare Tools: Share and Access Host (Windows) Folders [migrated]

Probably the best environment for web applications development I have found is by using a virtual machine(Linux Ubuntu) within my host OS(Windows). This way, I can take benefit of Windows based ...
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0answers
29 views

Ubuntu 14.04 virtual servers lose network connectivity after inactivity

I'm trying to set up an MDM environment on a few virtual Ubuntu machines, 14.04 LTS running on VMware ESXI 5.5. They're currently very vanilla -- 14.04 mini CLI installs, 20gb storage with 2gb ram. ...
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0answers
56 views

Error installing Python related packages for Ansible on an AWS Ubuntu server

I am trying to install the Ansible control server on Ubuntu 14.x (an AWS instance). When trying to install the dependencies, I saw an error. I'm not sure what I need to do. Is this an ignorable ...
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0answers
33 views

Why same docker container has different file system on different environment?

I have several environments - one uses Proxmox (with Ubuntu 14.04 VMs) and another one uses OpenStack (with Ubuntu 14.04 and CentOS 7 VMs). There is a docker image that is used on all these ...
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3answers
118 views

Replicating a linux web server

I'm planning on replicating a web server for high availability purposes. The server is running as a Ubuntu 15.04 virtual machine in Hyper-V and has MariaDB 10.0, Apache 2.4 and PHP-FPM 5.6 installed. ...
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0answers
34 views

Can't pass Fail2ban banned IP's to CloudFlare in Nginx?

I have Ubuntu 14.04, Nginx 1.6.2, MySQL 10.0.17-MariaDB, PHP 5.5.24 VPS. It running two WordPress sites. I use fail2ban with CSF. Fail2ban I use ban action as route, because iptables-multiport and ...
0
votes
1answer
30 views

Check if a constant file request is flooding the server

I'm new to this sort of thing so forgive me if I ask anything stupid. I am using moodle (open source LMS), it has a feature where you can upload a scorm package which requires a reliable internet ...
1
vote
2answers
54 views

swapon failed: Device or resource busy on mounted disk

I want to make a swap on mounted external EBS, /workspace And I got Device or resource busy swapon: /workspace/swap.1: swapon failed: Device or resource busy sudo /bin/dd if=/dev/zero ...
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0answers
23 views

SSL Working on 8888 but not 443

I have Apache set up to server HTTPS traffic. If all I change in the 000-default.conf is <VirtualHost *:443> to <VirtualHost *:8888>, I am able to hit the page externally on port 8888. ...
0
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1answer
19 views

Software to record service level [closed]

I provide a cloud service (SaaS) on an Ubuntu machine and will be faced with service level agreements (SLAs) soon. I.e., we'll have to see what service level we can provide (probably on daily or ...
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0answers
15 views

Server - run programs under specific user with restrictions to write only into one directory [closed]

i'm a web developer and i need to run some third-party programs on my server. Since these programs are third-party and i'm not always 100% sure of their reliability, i would run these programs with ...
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4answers
992 views

Effectively handling 2+ million files

I have a file based DB that has about 2M files stored in 3 levels of subdirectories. 2/2/6253 2/2/6252 ... File a vary from 30 bytes to 60 KB. Whole DB is Read Only. DB is about 125 Gigabytes big. ...
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0answers
8 views

How to check that Xdebug remote debugging is set up correctly [migrated]

I have searched the internet for a while now, but haven't found a possibility how to check if Xdebug is working correctly. I have installed Xdebug on Ubuntu (like instructed on the xdebug homepage). I ...
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0answers
10 views

Cobbler Ubuntu 12.04 netcfg failure

I am using Cobbler to PXE boot cluster nodes and install Ubuntu 12.04. I have made Ubuntu 14.04 work with Cobbler and the cluster but Ubuntu 12.04 is showing weird errors at the start of the OS ...
0
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1answer
60 views

Is there anyway to do ssh on a VM with a local IP address?

Scenario :I am using KVM as a hypervisor and Ubuntu as guest and host OS. There are many VMs on a PM and I am assigning IP addresses to those VMs using NAT. To create VMs I am using a baseimage. So ...
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votes
1answer
44 views

Storage displayed discrepancy from actual hard drive

In our ubuntu 14.04 server we have a 1TB Hard drive. The hard drive is displays as 998GB with 1% usage, however, with PHP software such as owncloud, it is only displaying 19GB of storage available. Is ...
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1answer
36 views

Multi IPs on a Xen VM with bridging

While I am fairly new to XEN (running under Ubuntu 14.04) I've not had any real issues until now. I have set my networking using bridging and that has worked well for many different machines until ...
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0answers
47 views

AWS EC2 replacement instance

I've inherited our AWS management duties for the time being and I've received a notice from AWS about some of our instances needing regular maintenance. The EC2 instances are pretty primary, a proxy ...
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0answers
86 views

Unable to see Ubuntu 15.04 Server VM IP Address in Hyper-V Manager

I recently spun up an Ubuntu 15.04 Server VM on Hyper-V. When I look at the VM in the Hyper-V Manager, it does not display the DHCP-assigned IP address, but reports the status is OK. When I SSH into ...
3
votes
1answer
109 views

Why would a ssh connection fail to connect with whole proper setups?

Using Ubuntu Server 14.04 I got ssh server running on port 2222 (they asked it like that at building). I already got whole setups reviewed and nothing seems to be ok. This is what's set up: At ...
0
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1answer
33 views

mysql and redis services unavailable during high traffic times

I've have a webserver that runs some services like Apache, Mysql, Redis and some NodeJS apps. On times of high traffic my server seems to do not support the heavy load. When it's ocurring, often when ...
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0answers
34 views

DNS not working with Ipv6

I'm trying to configure bind for ipv6 protocol.I have added the entries to the zone and configuration files but still the ipv6 IPs are not returned when i try for nslookup.Can someone guide me to ...
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0answers
26 views

Where are the zentyal users stored?

I just succeeded in setting up zentyal and sending/receiving emails. The problem is, the first user that I created in zentyal Users and Computers, does not show up. I can not reproduce the problem ...
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0answers
69 views

(KVM) virt-manager stuck in password prompt after open VM

so i installed a fresh ubuntu server 14.04 with KVM, i'm connecting with my other ubuntu machine using virt-manager. so after i had permissions problem creating a new VM, i uncomment user="root" and ...
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0answers
23 views

Ubuntu 14.04 using 100% SWAP with more than 40GB free memory [migrated]

I'm a bit at a loss trying to figure out why this would be the case. Can anyone provide some helpful ideas on troubleshooting this? free -m total used free shared ...
0
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0answers
17 views

bind9 ubuntu set up correctly, quit working

While I'm talking about Chef a bit here, I'm fairly confident the problem has nothing to do with Chef) We manage all of our Linux (Ubuntu) servers, which are running our web infrastructure, with Chef, ...
0
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0answers
34 views

How to configure DHCPv6 and DNSv6 configuration in Ubuntu 12.04?

I'm planning to configure DHCPv6 and DNS server in my network. I would like to understand whether both DHCPv4 and DHCPv6 can be configured using isc-dhcp-server service? When i tried nslookup ...
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0answers
27 views

VPN Connection Failed When Using SSH [closed]

I want to connect to my server in my office over VPN which has a SSH server installed. But when I connect to the VPN and then try to SSH to my server, the vpn connection closed suddenly. What is the ...
0
votes
0answers
25 views

Insufficient access to edit OpenLDAP cn=config with external SASL authentication

I want to add a schema to an OpenLDAP database that I've inherited. ldapadd -vY EXTERNAL -H ldapi:/// -f schema.ldif SASL/EXTERNAL authentication started SASL username: ...
0
votes
1answer
42 views

Ubuntu SSH connections don't close

We have a connection to one of our servers from an external party. This party logs in using sftp and uploads some files. The sessions are not closed by that party and they don't know how to get that ...
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0answers
18 views

[Ubuntu][Samba 4.1.6] Wrong directory mode

I use Samba 4.1.6 on Ubuntu 14.04. Settings: create mask = 0660 directory mask = 0770 I would like to "force" the directory / create mask for mount's from Windows & Linux. But I don't know, ...
0
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1answer
19 views

On ubuntu 12.04, what file has the systemwide list of gem sources for rubygems 1.9.1

I need to deploy a gem from a custom gem source to my ubuntu 12.04 servers that are managed by puppet. In the puppet class, I will put the command that adds our custom gem server to the gem sources, ...
0
votes
1answer
26 views

Ubuntu - Folder replaced by lost+found/ on raid1 disks

Running Ubuntu Server 12.04 LTS I have setup a RAID1 on disks sdb & sdc (md0) following strictly this tutorial which I guess is very classical. I loaded data on my disk for archive purposes. A ...
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0answers
46 views

Php5-CGI is using 100% CPU on a single hit. How do I track down the culprit?

I ran into a strange problem with a Magento Store. The server was crashing when we hat a little traffic-peak so I checked what was going on. Using htop I found out that PHP5 CGI is using up to 100% ...
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0answers
13 views

Ubuntu 10.04-12.04 upgrade apache not working

I've just upgraded a server from Ubuntu 10.04 to 12.04 given the imminent end of support for 10.04. The upgrade went fine (I'd tested it all with a virtual machine beforehand), however the webserver ...
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0answers
66 views

Trying to configure Zentyal, always getting an error message regarding OpenChange provisioning

I just installed Zentyal 4.1 on a Ubuntu server which is only accessible on the internet. This server should only act as a Exchange Server replacement for a 3 ppl environment. Even though there are ...